Lifting Sensor (Rear) Circuit Inspection

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUNCTION

With CONSULT-II

Check operation with "LIFT RR PULSE" on the DATA MONITOR to make sure pulse changes.

LIFTING SENSOR (REAR) OPERATION REFERENCE

Monitor item [OPERATION or UNIT]
LIFT RR PULSE	-	The rear lifting position (pulse) judged from the lifting sensor (rear) is displayed.

Fig 1: CONSULT-II - Identifying "LIFT RR PULSE" On DATA MONITOR

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Turn ignition switch OFF.
Check signal between driver seat control unit connector and ground, with oscilloscope.

Fig 2: Driver Seat Control Unit Connector P2 Terminal 10 Signal Specifications

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Signal Between Driver Seat Control Unit Connector And Ground With Oscilloscope

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Rear lifting sensor circuit is OK.
NG: GO TO 2.

CHECK REAR LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and lifting motor (rear).
2. Check continuity between driver seat control unit connector P2 terminals 10, 16, 31 and lifting motor (rear) connector P7 terminals 1, 2, 3.
  - 10 (W) - 2 (W): Continuity should exist.
  - 16 (W) - 3 (W): Continuity should exist.
  - 31 (L/Y) - 1 (L/Y): Continuity should exist.
3. Check continuity between driver seat control unit connector P2 terminals 10, 16, 31 and ground.
  - 10 (W) - Ground: Continuity should not exist.
  - 16 (W) - Ground: Continuity should not exist.
  - 31 (L/Y) - Ground: Continuity should not exist.
OK or NG
- OK: Replace lifting motor (rear).
- NG: Repair or replace harness.
Fig 4: Checking Continuity Between Driver Seat Control Unit Connector P2 Terminals 10, 16, 31 And Lifting Motor (Rear) Connector P7 Terminals 1, 2 And 3
Courtesy of NISSAN MOTOR CO., U.S.A.